--- product_id: 534651773 title: "1.25-Inch Telescope Eyepiece Set, 4mm 10mm 20mm | Multi-focal eyepiece kit; fully multi-coated optics" brand: "starboosa" price: "Β₯10864" currency: JPY in_stock: true reviews_count: 13 category: "Starboosa" url: https://www.desertcart.jp/products/534651773-1-25-inch-telescope-eyepiece-set-4mm-10mm-20mm-multi store_origin: JP region: Japan --- # Multi-coated lenses for sharp, clear images 1.25 inch diameter eyepiece Upgraded soft eyecups for eye comfort 1.25-Inch Telescope Eyepiece Set, 4mm 10mm 20mm | Multi-focal eyepiece kit; fully multi-coated optics **Brand:** starboosa **Price:** Β₯10864 **Availability:** βœ… In Stock ## Summary > 🌠 Upgrade your night sky game with crystal-clear views and unmatched comfort! ## Quick Answers - **What is this?** 1.25-Inch Telescope Eyepiece Set, 4mm 10mm 20mm | Multi-focal eyepiece kit; fully multi-coated optics by starboosa - **How much does it cost?** Β₯10864 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/534651773-1-25-inch-telescope-eyepiece-set-4mm-10mm-20mm-multi) ## Best For - starboosa enthusiasts ## Why This Product - Trusted starboosa brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Comfort Meets Clarity:** Soft eyecups provide a cozy viewing experience, reducing eye strain during those long stargazing sessions. - β€’ **Universal Compatibility:** Seamlessly fits all 1.25-inch telescopes including reflectors and refractorsβ€”your all-in-one upgrade. - β€’ **Versatile Focal Length Trio:** 4mm, 10mm, and 20mm eyepieces let you explore everything from distant planets to star clusters with precision. - β€’ **Crystal-Clear Multi-Coated Optics:** High-grade optical glass with multi-coating ensures vibrant, sharp images with minimized chromatic aberration. - β€’ **Pro-Level Imaging at a Friendly Price:** Top-tier optics and build quality ranked #4 in telescope eyepieces, trusted by both beginners and pros. ## Overview The Starboosa Multi-Coated Telescope Eyepiece Set includes 4mm, 10mm, and 20mm eyepieces with 1.25-inch diameter, designed for both amateur and professional astronomers. Featuring high-grade optical glass with multi-coated lenses, these eyepieces deliver sharp, clear images with corrected chromatic aberration. Soft eyecups enhance comfort during extended use. Compatible with all standard telescopes, this set offers versatile focal lengths for detailed observation of celestial bodies, making it a top-rated choice for enhanced astronomical viewing. ## Description Product description Recommendation of wide-angle eyepieces When the eye is close to the eyepiece, a soft eyecup is attached to the eyepiece to make it easier for the eye to touch the edge of the eyepiece. Features Focal length: with 3 sets :4mm 10mm 20mm. You can freely observe objects at different distances. Upgraded Lens has better imaging effect, chromatic aberration is balanced and corrected, and the image is clear. Eyepieces support all types of telescopes, reflectors and refractors. Observe the star clusters, moon, sky and planets in greater detail. Lens material uses fully Multi-coated optical glass to achieve a clear vision and excellent contrast. Multi-coated Lens to provide a better and sharper image. Eyepiece dust cover is also included. Advantages and Features Feature 1 Feature 2 Feature 3 Feature 4 Feature 5 Feature 6 Advantages Package Contents 1X 4mm Telescope Eyepiece 1X 10mm Telescope Eyepiece 1X 20mm Telescope Eyepiece Review: Works Good - These are fine. Review: It works! - I bought these eyepieces for my 150mm reflective telescope. It worked pretty well. The 20mm one results a good field of view just covering the 4 Galilean satellites of Jupiter. The 4mm one reveals the stripes of Jupiter. The 10mm, however, had a serious artifact. Fortunately, I got a good replacement promptly after the returning process. Overall, I’m pleased with the quality and the price. ## Features - 1.25 inch (31.7mm) diameter eyepiece for astronomical telescopes. Eyepieces are suitable for astronomy professionals and beginners. [Upgraded eyepieces come with soft eyecups] - Focal length: 4mm 10mm 20mm Three sets, you can freely observe objects with different distances and sizes. When the eye is close to the eyepiece, a soft cover is attached to the eyepiece so that the eye can comfortably touch the eyepiece while watching. - Upgraded Lens has better imaging effect, chromatic aberration is balanced and corrected, and the image is clear.Eyepieces support all types of telescopes, reflectors and refractors. Observe the star clusters, moon, sky and planets in greater detail. - The image plane is flat and chromatic aberration is corrected in a well-balanced manner, resulting in a clear image. The lens material is made of high-grade optical glass. Achieves a clear field of view and excellent contrast. - Multi-coated Lens to provide a better sharp image. If you have any problems using it, please contact us by email. We will solve the problem immediately. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BYRWSYP8 | | Additional Features | Upgraded Lens for Clearer Images | | Best Sellers Rank | #4 in Telescope Eyepieces | | Brand | starboosa | | Coating | Multi-Coated | | Compatible Devices | Telescope (Reflector, Refractor) | | Customer Reviews | 4.4 out of 5 stars 111 Reviews | | Eye Piece Lens Description | High-grade optical glass, flat image plane, corrected chromatic aberration, and fully multi-coated optical glass Eye Piece Lens Description High-grade optical glass, flat image plane, corrected chromatic aberration, and fully multi-coated optical glass See more | | Field Of View | 60 Degrees | | Finderscope | Reflex | | Focal Length Description | 20 millimeters | | Focus Type | Manual Focus | | Item Dimensions D x W x H | 5.9"D x 2.8"W x 2"H | | Item Weight | 0.22 Kilograms | | Manufacturer | starboosa | | Manufacturer Part Number | SB-PL2301 | | Model Name | Starboosa Eyepiece Set for Telescope | | Model Number | SB-PL2301 | | Mount | Altazimuth Mount | | Objective Lens Diameter | 20 Millimeters | | Power Source | Manual Operation Without Any External Power Source | | Product Dimensions | 5.9"D x 2.8"W x 2"H | | Telescope Mount Description | Altazimuth Mount | | Zoom Ratio | 50 | ## Product Details - **Brand:** starboosa - **Finderscope:** Reflex - **Focus Type:** Manual Focus - **Item Weight:** 0.22 Kilograms - **Model Name:** Starboosa Eyepiece Set for Telescope - **Objective Lens Diameter:** 20 Millimeters - **Power Source:** Manual Operation Without Any External Power Source - **Product Dimensions:** 5.9"D x 2.8"W x 2"H - **Telescope Mount Description:** Altazimuth Mount ## Images ![1.25-Inch Telescope Eyepiece Set, 4mm 10mm 20mm | Multi-focal eyepiece kit; fully multi-coated optics - Image 1](https://m.media-amazon.com/images/I/51+Q9O6+JHL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works Good *by G***E on April 26, 2026* These are fine. ### ⭐⭐⭐⭐⭐ It works! *by C***U on January 27, 2025* I bought these eyepieces for my 150mm reflective telescope. It worked pretty well. The 20mm one results a good field of view just covering the 4 Galilean satellites of Jupiter. The 4mm one reveals the stripes of Jupiter. The 10mm, however, had a serious artifact. Fortunately, I got a good replacement promptly after the returning process. Overall, I’m pleased with the quality and the price. ### ⭐⭐⭐⭐ Good set they are solid built *by C***Z on January 19, 2024* They are obviously not the same as the $100+ ones but for the price they will last me for a long time and are just fine for my setup and matched quality or better than 99.99% of telescope lenses to be honest. I don't have a 2k+ dollar teliscope and I doubt you do either if you're r reading this. πŸ˜‚ The images are from a sub $100 teliscope with a crappy tripod taken by a camera that is honestly by far the most expensive thing through the smallest lens and the largest, using the projection method (look up camera teliscope adaptors if you have questions about methods). ## Frequently Bought Together - Starboosa Eyepiece Set for Telescope - Multi-Coated Optical Lens - 1.25 inch Telescope Eyepiece - The Upgraded Eyepiece Comes with a Soft Eyecup [4mm, 10mm, 20mm Eyepiece Set] - Telescope Barlow Lenses Kit 2X-3X-5X, 1.25 Inch Telescope Accessory, Fully Metal Multi Coated Broadband Green Film Barlow Lens for Astronomy Eyepiece - Celestron – Telescope Moon Filter – Eyepiece Accessory – Reduces Moon Glare and Enhances Lunar Crater Details – Great for Full Moon Observing – Works with Any Telescope That Accepts 1.25" Eyepieces --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/534651773-1-25-inch-telescope-eyepiece-set-4mm-10mm-20mm-multi](https://www.desertcart.jp/products/534651773-1-25-inch-telescope-eyepiece-set-4mm-10mm-20mm-multi) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-07-12*